A put option on ABC stock currently sells for $ 14.0 . The exercise price and the stock price is $ 70.0 . The put option has a delta of 0.5 If within a short period of time the stock price increases to $ 70.50 , what would be the change in the price of the put option ?

A. Increases by $ 0.25

B. Decreases by $ 0.25

C. Increases by $ 0.50

D. Decreases by $ 0.50